COMPRESSORS, GAS TURBINES AND JET ENGINES QUIZ

Euler's equation can be used for

All of these

Radial flow compressors

Axial flow compressors

Pumps

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Standard air is the air at

Atmospheric conditions at any specific location

20°C and 1 kg/cm² and relative humidity 36%

15°C and 1 kg/cm²

0°C and standard atmospheric conditions

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For speed above 3000 km/hour, it is more advantageous to use

Turbojet engine

Rockets

Ramjet engine

Propellers

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An ideal air compressor cycle without clearance on P-V diagram can be represented by following processes

Two adiabatic and two isobaric

One adiabatic, one isobaric and two constant volumes

One adiabatic, two isobaric, and one constant volume

Two adiabatic, one isobaric and one constant volume

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The air-fuel ratio in gas turbines is of the order of

7: 1

15: 1

50: 1.

30: 1

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A simple turbojet engine is basically

Gas turbine engine equipped with a propulsive nozzle and diffuse

Ramjet engine

Chemical rocket engine

A propeller system

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A centrifugal compressor works on the principle of

Generating pressure directly

Centripetal action

Conversion of kinetic energy into pressure energy

Conversion of pressure energy into kinetic energy

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The ratio of work done per cycle to the swept volume in case of compressor is called

Compression ratio

Compressor efficiency

Compression index

Mean effective pressure

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Producer gas is produced by

Passing steam over incandescent coke

Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast

Carbonisation of coal

Passing air and a large amount of steam over waste coal at about 65°C

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Which of the following plants is smallest and lightest for generating a given amount of power?

Solar plant

Petrol engine

Gas turbine plant

Diesel engine

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